The last time I negotiated was when I bought a new phone in December, used by the previous owner. In fact, my father took the main initiative in the negotiations because I just followed my emotions. He negotiated PLN 50 down the price, i.e. about USD 12, not much, but it's still something. I admit that I may be too young and have no experience in negotiations, but I would like to do it as much as possible one day to achieve the best possible compromise.